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发明公开
CN103323140A 一种利用光纤复合架空地线余缆解决光纤布里渊散射监测存在的交叉敏感的方法 无效 - 撤回

一种利用光纤复合架空地线余缆解决光纤布里渊散射监测存在的交叉敏感的方法
摘要：
本发明提供了一种利用OPGW（Optical Fiber Composite Overhead Ground Wire，光纤复合架空地线）余缆解决光纤布里渊散射监测存在的交叉敏感的方法，属光电子测量技术领域。光纤布里渊散射解调分析仪与OPGW的光纤纤芯相连。只有温度变化会引起电力铁塔上的OPGW余缆的布里渊散射频移，覆冰、风吹等外界应力因素不会引起布里渊散射的频移。以OPGW余缆来对布里渊散射监测技术进行温度补偿，解调出架空OPGW的温度和应变信息，以OPGW的温度和应变信息反映OPGW的运行状态，并对OPGW的故障点运用布里渊散射传感技术进行定位。本发明利用电力铁塔上的OPGW余缆进行温度补偿，对OPGW沿线的温度和应变进行监测，可实现对OPGW运行状态的在线监测。
摘要（英）：

The invention provides a method utilizing an OPGW redundant cable to solve cross sensitivity existing in optical fiber Brillouin scattering monitoring, and belongs to the technical field of photoelectronic measurement. An optical fiber Brillouin scattering demodulation analyzer is connected with the optical fiber core of an OPGW. Only temperature changes can cause the Brillouin scattering frequency shift of the OPGW redundant cable on an electric power iron tower, and ice accretion, wind blowing and other external stress factors cannot cause the Brillouin scattering frequency shift. Temperature compensation is carried out on a Brillouin scattering monitor technology through the OPGW redundant cable, the temperature and strain information of the overhead OPGW is demodulated out, the running state of the OPGW is reflected through the temperature and strain information of the OPGW, and the failure point of the OPGW is located through a Brillouin scattering sensor technology. The temperature complementation is carried out by utilizing the OPGW redundant cable on the electric power iron tower, the temperature and the strain along the OPGW are monitored, and the on-line monitor of the running state of the OPGW can be achieved.

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